The effect of early operation on the survival of spina bifida cystica.
D002675:Child, Preschool; D004739:England; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D016135:Spinal Dysraphism / Q000401:mortality* / Q000601:surgery*; D014852:Wales